General

  • Target

    5a57068f66938c8c0346643f8cedd304cd572b3c3f55e15887081b94edaa8987N.exe

  • Size

    1.7MB

  • Sample

    250121-f83x5symdn

  • MD5

    4c5cdbe993419be6ff5d2608e01f7620

  • SHA1

    0f9cddc4a321cd1641d5c207f7223f61de0c54dd

  • SHA256

    5a57068f66938c8c0346643f8cedd304cd572b3c3f55e15887081b94edaa8987

  • SHA512

    cae371309fda6b5fee01284ca445be72c47ab0816a2451835e8da5c9ba8bd741eab2160602d62b8064b80220a713d1d89a5371bcb2f6aaafba7f7c10150696d9

  • SSDEEP

    24576:t3QwuLyEbVoCtPreIjNLoN/VNGeSQDx1m17zezKOkCzeJGFUJ:tgwuuEpdDLNwVMeXDL0fdSzAG

Malware Config

Targets

    • Target

      5a57068f66938c8c0346643f8cedd304cd572b3c3f55e15887081b94edaa8987N.exe

    • Size

      1.7MB

    • MD5

      4c5cdbe993419be6ff5d2608e01f7620

    • SHA1

      0f9cddc4a321cd1641d5c207f7223f61de0c54dd

    • SHA256

      5a57068f66938c8c0346643f8cedd304cd572b3c3f55e15887081b94edaa8987

    • SHA512

      cae371309fda6b5fee01284ca445be72c47ab0816a2451835e8da5c9ba8bd741eab2160602d62b8064b80220a713d1d89a5371bcb2f6aaafba7f7c10150696d9

    • SSDEEP

      24576:t3QwuLyEbVoCtPreIjNLoN/VNGeSQDx1m17zezKOkCzeJGFUJ:tgwuuEpdDLNwVMeXDL0fdSzAG

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

MITRE ATT&CK Enterprise v15

Tasks